Hydroprocessing
Hydroprocessing utilizes hydrogen and advanced catalysts to remove impurities and upgrade molecular structures, enhancing the quality and value of fuels and feedstocks. CLG has driven significant advancements in hydroprocessing, including the development of high‑conversion residue upgrading technologies such as LC‑FINING™, designed to minimize both capital and operating costs.
Our technologies have been successfully implemented in more than 100 hydroprocessing units worldwide, including the world’s largest all‑hydroprocessing White Oil unit— demonstrating proven performance, scalability, and reliability across a wide range of applications.
ISOCRACKING
The most flexible upgrade path to lighter products
Our ISOCRACKING® technology enables the efficient conversion of heavy opportunity feedstocks into premium middle distillates and high-quality lube oil base stocks—maximizing yields while enhancing operational flexibility and economic performance.
ISOCRACKING units are available in multiple proven configurations, allowing refiners to tailor performance and product slates to specific project objectives: single-stage once through (SSOT), single-stage recycle (SSREC), and two-stage recycle (TSREC). These configurations support a wide range of feedstocks and processing goals, providing refiners with optimized, fit-for-purpose solutions.
What sets our tech apart:
- Unmatched feedstock flexibility with industry-leading yields
- Proven reliability across a wide range of applications
- Operations‑focused designs for improved performance
- Customized graded catalyst systems tailored to specific processing needs
- Optimized reactor configurations for maximum efficiency
- Advanced reactor internals for superior flow distribution and mixing
- Lower fuel consumption to improve energy efficiency and reduce operating costs
ISODEWAXING
More yields, more products
Our revolutionary ISODEWAXING® technology enables refiners to upgrade paraffinic streams into high‑viscosity index (VI) base oils for premium lubricant applications. By converting hydrocracker bottoms into high‑value engine oil feedstocks, ISODEWAXING allows refiners to capture greater value from every barrel. Unlike conventional dewaxing processes, ISODEWAXING isomerizes wax rather than removing it, increasing yields while improving product quality. The advanced ISODEWAXING catalyst system also reduces processing severity and enhances overall hydrocracker performance.
What sets our tech apart:
- Enables premium Group II / III / III+ base oils production
- Higher VI and yields vs conventional dewaxing
- Processes feedstocks with low to nearly 100% wax content
- Produces base oils with VI ~95 to 140+
ISOTREATING
Removing impurities for cleaner fuels
Our ISOTREATING® technology delivers high‑performance distillate hydrotreating for light and middle distillates and a wide range of gas oils, including difficult feedstocks such as coker naphtha, coker light gas oil and heavy gas oil, visbreaker gas oil, and LCO. The technology is designed for deep desulfurization, denitrification, and aromatics saturation, producing low‑sulfur naphtha, jet fuel, ultra‑low sulfur diesel, and higher‑quality FCC feedstocks.
What sets our tech apart:
- Minimal emissions and waste effluent
- Minimal by-product formation
- Catalyst use results in small reactors with high-quality product
Residue Desulfurization
Reducing sulfur for environmental and economic benefits
Our residue desulfurization (RDS) process is a high-pressure catalytic hydrotreating process that helps refiners lower sulfur levels in crude oil (vacuum) residues to produce cleaner fuels and feedstocks. This hydrogen-efficient process sufficiently saturates products so that further processing in conversion units is greatly enhanced, ultimately producing more and higher-value light products. By reducing processing severity and complexity, these technologies deliver improved margins today while preserving long‑term operational and economic flexibility.
LC-FINING
Making difficult feedstocks profitable
Our LC-FINING® ebullated-bed process converts extra heavy crude oil (vacuum) residue into low-sulfur, low-metals hydrocracker feedstock. Our process reduces capital investment by using a proprietary, low-pressure hydrogen recovery system as opposed to high-pressure equipment. A built-in onstream catalyst addition and withdrawal system reduces operating expenses by eliminating shutdowns for catalyst replacements. With high yields and long run lengths, LC-FINING allows refiners to turn the most difficult feedstocks with the heaviest fractions into light, clean products and high-value transportation fuels.
Building on this proven platform, LC‑MAX is an advanced flow‑scheme evolution that integrates Solvent Deasphalting within the LC‑FINING process. This configuration enables conversion levels exceeding 90 percent while maintaining high product selectivity.
We also offer flexible solutions for revamping existing units, including conversion of LC‑FINING to LC‑MAX or Hybrid Slurry configurations, allowing refiners to maximize residue upgrading performance as market and feedstock conditions evolve.
What sets our tech apart:
- Fully integrated solutions tailored to individual refinery objectives
- Proven expertise in slurry handling and challenging feeds
- Ensures reliable operation and reduced fouling
- Maximizes conversion, asset protection, and long‑term value
- Seamlessly integrates with existing hydroprocessing units
Conversion
Our conversion processes change low-value, contaminated waste feedstocks into high-value renewable fuel products. We focus on transforming unusable heavy residues into useful light gas oil products and coke. The benefits of this approach are both economical and environmental.
Delayed Coking
Transforming unusable residues into useful, light, gas oil products and coke
Our delayed coking technology is a proven, cost‑effective solution for upgrading heavy residual feedstocks into higher‑value light distillates and petroleum coke, enabling refiners to maximize asset utilization and improve overall refinery economics. Developed through decades of continuous refinement and informed by operating experience from more than 60 commercial unit designs worldwide, the technology delivers exceptional reliability, operational flexibility, and full compliance with stringent environmental and safety standards.
Solvent Deasphalting
A cost-effective upgrade for fuel products and base oils
Our solvent deasphalting process allows refining companies to maximize high value fuel production by removing heavy asphaltenes from petroleum liquids to produce deasphalted oil (DAO). We use a specialized solvent extraction process that separates DAO from contaminants in the residue by molecular type instead of by boiling point. The DAO can be used in fuel or upgraded into base oils, offering refiners a flexible tool to convert bottom-of-the-barrel residues and extract more value from heavy feedstocks.
What sets our tech apart:
- Unique renewable application
- Proven solvent extraction technology
- Produces high‑quality, low‑contaminant DAO
- Concentrates metals, CCR, and asphaltenes in pitch
- Flexible solvent options (propane, butane, pentane)
- Enables >90% VR conversion as key component of LC‑MAX
- Multiple pitch end‑use options
FCC
The flexible conversion workhorse of refining
Recognized as one of the most efficient and reliable processes in the refining industry, our Fluid Catalytic Cracking (FCC) technology allows refiners to convert heavy vacuum gas oils into high-value motor fuels. The process is flexible, allowing refiners to shift yields between maximum gasoline and maximum diesel. Proprietary, commercially proven features like Micro-Jet Plus™ feed injectors, the patented Reaction Termination Device, and MSO™ combustion air distributors work together to enhance cracking, improve reliability, and ensure superior performance. This integrated design provides a cost-effective, high-yield solution to meet today's refinery challenges.
What sets our tech apart:
- Cracks a wide range of feedstocks
- High operational flexibility
Naphtha Cracking
Transforming naphtha feedstock into high-value plastic building blocks
Our Naphtha Cracking technology offers producers a proven, high-yield solution for converting naphtha feedstock into essential olefins like ethylene and propylene. This process uses high-temperature pyrolysis within our industry-leading SRT® (Short Residence Time) steam cracking furnaces, which are specifically designed for maximum thermal efficiency and long run lengths when processing liquid feedstocks. This efficient thermal decomposition maximizes the yield of valuable olefins while minimizing energy consumption and coke formation. By offering a reliable and low-cost solution for olefin production, this technology empowers producers to meet global demand for plastics and polymers.
What sets our tech apart:
- Highest olefin yields in the industry
Energy Transition
Technologies:
As the world transitions to a circular economy, managing plastic waste has become a critical priority. Our circular technologies are at the forefront of this transformation, providing comprehensive solutions for producers to achieve their sustainability goals and creating a cleaner, more sustainable future for all.
ISOTERRA
A low-cost path to low-carbon fuels
Our ISOTERRA™ process brings together the proven strengths of ISOTREATING®, ISODEWAXING®, and ISOCRACKING® technologies with Chevron’s deep expertise in renewable fuels unit operations. This powerful combination enables customized solutions designed to maximize production of renewable diesel (RD/HVO) and sustainable aviation fuel (SAF)—aligned precisely with each project’s performance, yield, and integration objectives.
What sets our tech apart:
- High SAF yields
- Low carbon intensity
Ethanol to Jet
A proven solution for decarbonizing aviation
Our Ethanol to Sustainable Aviation Fuel (SAF) technology provides operators with a large-scale, commercially demonstrated solution to help decarbonize the aviation industry. This process offers a safe and reliable solution by integrating proven ethanol to ethylene (EtE), olefin oligomerization, and advanced hydrogenation technologies. Central to this process is our world-scale EtE EverGreen™ dehydration technology which we combine with hydroprocessing technologies from Chevron Lummus Global. By leveraging proven, commercial-scale technologies, we maximize the final yield of SAF, providing producers with a reliable, low-carbon, and cost-effective pathway to meet growing sustainable fuel demand.
Hydrogen Technology
Special delivery: Clean fuel over long distances
Our hydrogen technologies serve as an enabler for decarbonizing heavy industry, refining, and petrochemicals. We provide solutions that leverage low and zero carbon intensity hydrogen as fuel and feedstock. By offering comprehensive, integrated solutions for both "blue" and "green" hydrogen, we empower our clients to reduce their carbon footprint, meet sustainability goals, and lead the global energy transition.
Bioalkylate
A low-carbon, drop-in gasoline component
Our bioalkylate technology is the world’s first renewable alkylate, providing a way to convert bio-ethanol into a high-value, low-carbon intensity fuel blending component. The process first uses EtE EverGreen™ technology to convert ethanol into green ethylene. The technology then processes and converts the green ethylene into renewable alkylate, a "drop-in" component with a 30% lower carbon intensity than traditional gasoline. This commercially-demonstrated breakthrough offers producers a flexible, world-scale solution to meet the growing demand for sustainable fuels.
What sets our tech apart:
- 30% lower carbon intensity than traditional gasoline
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